Agene is a segment of dna that codes for a particular protein. one dna molecule typically contains thousands of genes. so, in order to fit into the nucleus of a cell, dna molecules must be wound around proteins into structures known as

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geographical equipment to analyze the composition of rocks

2points what do bacteria have in common with the cells of other living organisms?

Which of the following observations darwin shape his concept of descent with modification? a) species diversity declines farther from the equator.b) fewer species live on islands than on the nearest continents.c) birds can be found on islands located farther from the mainland than the birdsê¹ maximum nonstop flightdistance.d) south american temperate plants are more similar to the tropical plants of south america than to thetemperate plants of europe.e) earthquakes reshape life by causing mass extinctions.